[IGSREPORT-8480] Wk 1123 JPL Analysis Report

David C Jefferson djeff at cobra.jpl.nasa.gov
Tue Jul 31 16:38:31 PDT 2001


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IGS Electronic Report   31 Jul 16:38:32 PDT 2001      Message Number 8480
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Author: D C Jefferson

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JPL ANALYSIS REPORT   GPS-WEEK 1123 (DAYS 196-202, DATES 2001 Jul 15 - Jul 21)
******************************************************************************

Submitted by the JPL IGS/FLINN Analysis Team:

D C Jefferson, Y E Bar-Sever, M B Heflin, F H Webb, J F Zumberge

all at the Jet Propulsion Laboratory, California Institute of Technology, 
Pasadena, CA  91109.

Files listed below are available in Unix compressed format and can be
retrieved using anonymous ftp to sideshow.jpl.nasa.gov (137.78.60.30),
directory pub/jpligsac/1123.  These files (except for *.tro) have also
been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl11237.sum         This text file.
jpl11237.erp         Earth rotation parameters for GPS week 1123.
jpl11237.snx         Ground station coordinates for GPS week 1123, SINEX format.
jpl1123[0-6].sp3     GPS ephemerides for GPS week 1123, sp3 format.
jpl1123[0-6].tro     Ground station troposphere estimates for GPS week 1123.
jpl1123[0-6].clk     GPS and ground station clocks for GPS week 1123, RINEX.
______________________________________________________________________________

Median Orbit Repeatability (see table below): 6.0 cm

This week, we add four new candidate global stations.  As with other sites,
these sites are given the opportunity to participate in the orbit and clock
solution as the global site distribution varies.  The following nominal
coordinates were assumed:
                                    X (m)           Y (m)           Z (m)
FREE (Freeport, The Bahamas)   1088671.2700   -5596851.5412    2848798.3908
MBAR (Mbarara, Uganda)         5482951.4173    3260442.5106     -66519.9791
PTBB (Braunschweig, Germany)   3844060.1020     709661.2669    5023129.6013
UNB1 (Fredericton, Canada)     1761288.2442   -4078238.6044    4561417.8235

Due to potential problems, data from stations mentioned below were not
considered for use in the global solution for the day indicated.  (For
geographical reasons, they may not have been used in any case.)

WARNING: Data from PRN17, PRN24 excluded day 196.
WARNING: Data from PRN31 excluded day 200.
WARNING: Data from PRN24 excluded day 201.
WARNING: Data from ANKR, EPRT, HARB, HNPT, LBCH, MEDI, SUWN, WLSN excluded day           196.
WARNING: Data from BRUS, KOUR, LBCH, PETP, RABT, SUWN, WLSN excluded day 197.
WARNING: Data from BRUS, GUAT, HARB, HARV, IISC, IRKT, KWJ1, LBCH, PETP, SPK1,           WLSN, WTZT excluded day 198.
WARNING: Data from BRUS, GUAT, HARB, HILO, PETP, SPK1, WLSN, WTZT excluded day           199.
WARNING: Data from HARB, HILO, KELY, SPK1, WTZT excluded day 200.
WARNING: Data from CAGL, ESTI, HARB, HILO, LAE1, WLSN, YAR1 excluded day 201.
WARNING: Data from CAGL, HARB, HILO, LAE1, LBCH, WLSN excluded day 202.

JPL REFERENCE CLOCK TABLE                   GPS week 1123 (2001 Jul 15 - Jul 21)
 2001-07-15 USNO
 2001-07-16 NRC1
 2001-07-17 NRC1
 2001-07-18 NRC1
 2001-07-19 NRC1
 2001-07-20 NRC1
 2001-07-21 NRC1
END REFERENCE CLOCK TABLE

In the following table, UT1R-UTC are the integrated values based on estimated
LODR values in the adjacent column.  See IGS Report No. 1498 (jpl07827.sum)
for details:

JPL ERP TABLE                               GPS week 1123 (2001 Jul 15 - Jul 21)
version 2           
     MJD   XPole   Ypole  UT1R-UTC   LODR Xsg Ysg UTsg LOsg Nr Nf Nt   Xrt   Yrt
         10**-6" 10**-6"      .1us .1us/d 10**-6" .1us .1us/d          10**-6"/d
52105.50  248969  264215   -457764  -1071  32  36  140  140 42  0 26  -742 -3424
52106.50  248184  260830   -456567  -1324  31  35  136  136 42  0 28  -452 -3468
52107.50  247973  257547   -455071  -1667  31  36  135  135 42  0 28   249 -3190
52108.50  247998  254392   -453225  -2026  29  35  133  133 42  0 28    -4 -3303
52109.50  247853  251330   -450940  -2544  29  36  133  133 42  0 27  -305 -2882
52110.50  247410  248274   -447883  -3569  30  38  138  138 42  0 27  -754 -3071
52111.50  246803  245208   -444048  -4102  29  33  130  130 42  0 28  -863 -3125
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 1123:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE               GPS week 1123 (2001 Jul 15 - Jul 21)
      01  7 15   01  7 16   01  7 17   01  7 18   01  7 19   01  7 20   01  7 21
prn   3d rss (cm)
  1       4          6          5          6          7          5          4   
  2       6          5          4          4          4          5          5   
  3      10          6         10          7         10         14         12   
  4       6          7          6          6          4          4         14   
  5       2          3          3          4          3          4          4   
  6       5          8          6          6          5          4          6   
  7       6          7          5          5          3          5          5   
  8       7          5          6          6          7          7          7   
  9       5          5          6          9          6          5          5   
 10       5          8          5          6          5          6          5   
 11      13          6          9          8         24         29         10   
 13       5          4          6         14          6          7          7   
 14       8         13          6          9          9          5          9   
 17                 12          9         13         10         11          8   
 18       6          7          8          6          7          4          4   
 19       8          9         13         11         26         16         16   
 20       7          6          4          7          8          4         22   
 21       7          9          8          8          5          6         13   
 22       6          5          5          5         10          6          5   
 23      13         21         10         11         26         22         20   
 24                  5          6          6          5                     3   
 25       4          4          6          5         10          5          5   
 26       7          7          8          7          6          7          4   
 27       6          5          6          5          7          7         10   
 28       6          6          6          6          9          7          8   
 29      10          7          8          7          8          9         15   
 30       2          2          2          4          4          3          3   
 31      11          9          5          8                     5          7   
_______________________
END ORBIT REPEATABILITY TABLE

The following table statistically summarizes this week's "engineering data", as
described in IGS Report No. 1528:

JPL ENGINEERING DATA SUMMARY TABLE          GPS week 1123 (2001 Jul 15 - Jul 21)
 receiver/transmitter (* means fiducial site)
 |     days analyzed
 |     |      rms clock noise (ns)
 |     |      |           average clock solution (us)
 |     |      |           |           rms pseudorange (cm)
 |     |      |           |           |   (dot means pcode not analyzed)
 |     |      |           |           |           rms phase (mm)
 |     |      |           |           |           |           average arc (hr)
 |     |      |           |           |           |           |
 |___  |__    |_______    |_______    |___        |___        |__
ALGO*  7.0   0.116       0.870        39.7        4.16        3.59    
AREQ   2.0    26.7        91.9        26.0        4.00        3.41    
ARTU   5.0    11.0      -0.818e-01    36.2        5.00        2.57    
AUCK*  5.9    16.8      -0.916e-04    40.7        5.03        2.90    
BAHR*  4.8   0.515        764.        33.9        5.00        3.68    
CHAT*  1.0    25.4      -0.661e-02    58.0        5.00        2.85    
CIC1   5.9    42.9      -0.371e-02    43.2        4.00        3.10    
COCO   1.8    29.1      -0.118        39.6        5.52        2.95    
CRO1   7.0   0.143        737.        37.7        5.00        3.58    
DARW   1.0    25.3      -0.534e-02    45.0        5.00        3.89    
DAV1*  7.0    17.8      -0.579e-02    29.4        4.00        1.28    
EISL   5.6   0.204e+05  -0.570e-01    55.0        5.20        2.56    
FAIR*  7.0    1.14       0.902        37.4        4.47        1.00    
FORT*  7.0    1.98       0.882e-01    78.6        5.46        1.78    
GALA   4.7    25.0      -0.765e-01    35.7        4.43        3.14    
GUAM*  7.0    18.4      -0.109        57.9        6.88        3.61    
HARB   0.7   0.503e+07   0.578e+04    51.0        4.00        1.75    
HNLC   1.0    30.1      -0.113        40.0        6.00        3.70    
HOB2*  4.0   0.127       -4.94        49.4        5.04        3.71    
HRAO   4.9    20.1      -0.682e-01    74.9        4.23        3.78    
INEG   1.0   0.289e+06    6.89        59.0        5.00       0.841    
IRKT*  5.5   0.218      -0.696        59.6        5.00        2.53    
JAB1   4.9    16.5      -0.848e-01    39.2        5.00        3.31    
JPLM   1.0    42.3        246.        43.0        4.00        2.60    
KELY   3.9    67.4      -0.497e-02    38.0        5.00        1.72    
KERG*  7.0    1.83        20.1        48.5        5.00        2.60    
KOKB*  5.7    1.09       0.916        39.1        5.33        1.12    
KOUR*  1.0    21.0      -0.787e-01    43.0        6.00        4.51    
KUNM   2.0    48.4      -0.136e-01    72.5        6.00        2.50    
KWJ1*  3.2   0.107e+07    8.19        41.7        5.77       0.872    
LAE1   0.8    14.3      -0.124        60.0        7.00        4.05    
LHAS*  4.8    40.4      -0.728e-02    33.8        4.81        3.54    
MAC1*  5.8    13.9      -0.230e-02    31.0        3.18        2.38    
MAG0   5.0    11.6      -0.826e-01    44.8        5.00        2.65    
MALI*  5.0    54.5        332.        69.5        7.00        2.00    
MAS1*  6.0    2.27        59.3        43.2        4.00        3.05    
MBAR   0.9    30.0      -0.964e-01    31.0        6.00        2.58    
MCM4*  6.9   0.476e+04    38.1        45.2        4.86        1.10    
MSKU   3.0    30.5      -0.895e-01    36.5        5.36        3.11    
NICO   2.0    15.8      -0.148e-02    25.5        5.00        3.82    
NKLG   4.0   0.300e+06    473.        69.3        6.00        1.62    
NOT1   1.0   0.937e-01    991.        72.0        7.00        2.00    
NOUM   1.0   0.290e+06    491.        51.0        6.00        1.76    
NRC1   6.9    .           .           47.3        4.69        3.54    
NRIL   4.0   0.356e+04   0.801e-02    39.0        5.54        2.36    
NTUS   4.9    6.89      -0.928e-02    59.8        6.62        3.97    
NYA1   4.0   0.121       0.688        32.0        4.00        1.76    
NYAL*  3.0   0.141       0.228        51.0        4.36        1.60    
OHIG*  3.0    19.7      -0.443e-02    41.3        4.10        2.34    
ONSA*  7.0   0.462        319.        43.1        4.59        2.60    
PERT*  1.0    13.2      -0.657e-01    58.0        5.00        2.99    
PETP   1.0    13.3      -0.627e-01    50.0        6.00        2.96    
PIMO   5.9    22.0      -0.119e-01    50.6        4.70        1.02    
RAMO   1.0    20.6      -0.862e-01    73.0        7.00        3.38    
REYK   1.0    10.5       0.109e-01    54.0        6.00        2.13    
RIOG   3.5    11.3      -0.666e-01    31.4        4.00        2.48    
SANT*  6.9    17.5      -0.750e-01    21.7        5.00       0.897    
SELE   5.0    37.1      -0.998e-02    45.7        4.21        3.47    
SEY1   1.8    41.3      -0.594e-02    77.9        6.00        1.75    
SHAO*  1.0    23.8       0.124e-01    70.0        6.00        2.53    
SLOR   1.8   0.288e+06    504.        62.8        6.00        1.81    
THTI   7.0   0.971e+05    232.        81.5        5.73        2.16    
TIDB*  7.0   0.136        318.        27.4        5.45        3.71    
TIXI   1.0    9.64      -0.679e-01    41.0        5.00        2.51    
TLSE   1.0   0.624       -2.20        85.0        5.00        2.21    
TSKB*  3.8    1.47       -1.53        53.3        5.27        3.02    
USNO   1.1    .           .           42.0        5.00        3.99    
USUD   5.0   0.247        415.        31.2        6.61        3.48    
WHIT   2.0    11.5       -42.9        37.2        4.00        2.55    
WTZR*  7.0    1.23      -0.126        45.6        4.87        2.91    
WUHN   1.0    21.1      -0.913e-01    64.0        6.00        3.37    
YAKT   1.0   0.537        834.        25.0        4.00       0.817    
YAR1*  3.5    821.      -0.347        68.0        3.38        1.86    
YAR2   3.0    5.66      -0.116e+05    23.7        3.69        3.42    
YEBE   1.0   0.399        1.94        44.0        5.00        1.87    
YELL*  7.0   0.128       0.375        42.6        4.88        1.85    
ZECK   1.0    32.1      -0.123e-01    32.0        5.00        3.79    
PRN01  6.8    3.72        186.        45.4        5.00        2.09    
PRN02  7.0    3.03       -45.7        48.0        5.00        2.25    
PRN03  7.0    2.25        48.6        46.7        5.00        2.18    
PRN04  7.0   0.778        645.        50.2        5.33        2.31    
PRN05  7.0    2.85        306.        45.8        5.00        2.38    
PRN06  7.0    9.31       -2.03        47.3        5.00        2.18    
PRN07  7.0    1.57        477.        47.9        5.00        2.39    
PRN08  7.0    2.93        412.        47.9        5.00        2.15    
PRN09  7.0    2.24       -54.3        44.7        5.00        2.11    
PRN10  7.0    2.79        7.13        51.8        5.00        2.24    
PRN11  7.0   0.522        2.93        47.2        5.16        2.10    
PRN13  7.0   0.400       -3.36        50.6        5.45        2.12    
PRN14  7.0   0.355       -118.        47.6        5.15        2.31    
PRN17  6.0    4.84        265.        49.2        5.00        2.11    
PRN18  7.0   0.618       -73.8        46.6        5.00        2.22    
PRN19  7.0    4.71        602.        44.4        4.46        1.95    
PRN20  7.0   0.282       -84.5        47.3        5.16        2.25    
PRN21  7.0    3.74        4.33        47.9        5.00        2.21    
PRN22  7.0    1.51        583.        49.6        5.00        2.08    
PRN23  7.0    5.77        16.6        47.2        5.00        2.12    
PRN24  5.0    2.16        66.1        48.2        5.00        2.33    
PRN25  7.0    2.09        15.5        46.5        5.00        2.33    
PRN26  6.6   0.658        542.        49.3        5.16        1.93    
PRN27  7.0    4.17        27.4        48.4        5.00        2.15    
PRN28  7.0   0.794       -5.25        48.9        5.00        2.18    
PRN29  6.7   0.813        619.        46.9        5.16        2.25    
PRN30  7.0    1.44       -28.0        44.9        5.00        2.30    
PRN31  6.0    4.08        53.9        48.2        5.00        2.06    
_______________________
END ENGINEERING DATA SUMMARY TABLE

As described in IGS Mail Message 37, the following table compares the JPL
precise ephemerides with those from the broadcast ephemeris:

JPL COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES
      01  7 15   01  7 16   01  7 17   01  7 18   01  7 19   01  7 20   01  7 21
prn   3d rss (cm)
  1     657        690        724        801        732        675        644   
  2     444        185        249        400        195        191        254   
  3     328        365        234        208        278        300        235   
  4     200        214        291        278        352        373        209   
  5     505        257        288        238        449        568        314   
  6     572        582        489        529        625        700        804   
  7     429        286        242        276        324        478        436   
  8     290        283        315        381        376        285        258   
  9     212        208        211        238        209        200        218   
 10     268        264        628        231        207        320        368   
 11     387        516        504        529        427        210        220   
 13     248        294        321        256        344        399        322   
 14     185        183        258        200        228        236        265   
 17                305        469        318        509        396        279   
 18     217        332        559        183        194        229        454   
 19     654        487        263        362        273        568       1244   
 20     328        347        184        189        239        384        449   
 21     722        724        583        484        411        338        719   
 22     246        168        194        377        491        391        298   
 23     677        475        928        428        454        514        760   
 24                409        551        807        523                  1103   
 25     250        464        314        275        229        376        336   
 26     594        304        164        199        336        252        244   
 27     294        248        224        287        222        311        316   
 28     261        415        391        226        195        302        274   
 29     170        178        174        311        203        289        188   
 30     388        223        129        140        296        219        167   
 31     490        489        321        298                   377        438   
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

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